Medos International Sarl

Depuy Spine, Inc.

Depuy Synthes Products, Inc.

Depuy Spine Sarl

Depuy Actomed, Inc.

Ronald Sacher

Nam T Chao

Randal R Betz

Simon Siu

Peter O Newton

James R Donahue

Dennis Hubbard

Jerold P Gurley

Chris Rybicki

Christopher L Ramsay

Richard C Techiera

Christopher Rybicki

Amie R Borgstrom

William Dunbar

Frank S Bono

Chris Fair

Newton Peter

Betz Randal

A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.

Constrained motion bone screw assembly

A method for manipulating a vertebra includes connecting a first bone anchor to a first vertebra, connecting a second bone anchor to a second bone anchor, positioning a spinal rod in a receiving member of the first bone anchor and in a receiving member of the second bone anchor, connecting a first instrument to the receiving member of the first bone anchor, and manipulating the first instrument to rotate first bone anchor and the first vertebra relative to the second vertebra.

Instruments and methods for manipulating vertebra

Instruments and methods for manipulating a vertebra

A method and apparatus for providing an adjustable length surgical implant is provided, wherein the surgical implant is readily adjustable by a surgeon using a surgical tool sized for use with the surgical implant. Adjustment of the surgical implant further requires a small incision through the skin prior to the adjustment of the length of the implant, such that the potential for infection is greatly reduces and the associated trauma of surgery is lessened for the patient.

Adjustable length implant

This invention relates to an apparatus for spinal fixation, in particular, for joining a bone anchor with spinal stabilizers such as a spinal rod or spinal plate in a polyaxial fashion. The invention is also directed to polyaxial connectors which incorporate arcuate washers. The polyaxial features of this invention are achieved preferably with snap-in washers which minimize the numbers of parts that a surgeon may have to handle during surgery.

Snap-in washers and assemblies thereof

Growing community of inventors

Boca Raton, FL, United States of America

Ronald Sacher